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Finding the Fourth Proportional to 123,737.70, 170,757.93 and 70,021.74

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Solution

The fourth proportional to 123,737.70, 170,757.93 and 70,021.74 is: 96,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,737.70 : 170,757.93 = 70,021.74 : x
  2. Step 2: Convert to fraction form
    123,737.70/170,757.93 = 70,021.74/x
  3. Step 3: Cross multiply
    123,737.70x = 170,757.93 × 70,021.74
  4. Step 4: Simplify right side
    123,737.70x = 11,956,767,377.40
  5. Step 5: Solve for x
    x = 11,956,767,377.40/123,737.70
  6. Step 6: Final answer
    x = 96,629.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.